Question # 1

Froth flotation process is used to concentrate the ore on:

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Density basis

Concentration basis

Wetting basis

Magnetic basis

Catalyst used in Haber's process is:

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Ni

Fe

Cu

Zn

Composition of carbon in kerosene oil is.

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C₁₀-C₁₂

C₁₂-C₁₂

C₁₆-C₁₈

C₃₀-C₃₀

Brown hair contains.

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Iron compound

Copper compound

titanium compound

Both a and b

Which one of the following is manufactured by Solvar's process:

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caustic soda

washing soda

urea

sulphuric acid

The process of removal of gangue form the ore is technically known as:

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concentration

purification process

metallurgy

refining

In the bessemerization process.

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Roasted ore is beated.

Molten matte is removed.

Molten matte is heated

Molten matte is added

the chemical formula of chalcopyrite is:

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Cu₂S

CuFe₂S

CuS

FeS

Manufacturing of urea involves:

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2 steps

3 steps

4 steps

5 steps

The number of carbon atoms present in gasoline or petrol.

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5-10

6-10

7-10

8-10

Concentration is a separating technique in which mineral is separated from.

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Gangue

Silicates

Aluminates

All

Froth flotation process is used to concentrate.

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Copper ore

Iron ore

Chromium ore

Aluminum ore

Formula of Urea is.

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KCNO

H₂N-CO-NH₂

HN-CO₂-NH

H₃N-CO-NH₃

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10th Class Chemistry Chapter 16 Chemical Industries English Medium KPK Boards Online Mcqs MCQs With Answers

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